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Phantasy [73]
3 years ago
8

What is the system of solution to y-x=-13 and -4x+3y=-51

Mathematics
1 answer:
poizon [28]3 years ago
8 0
Equation 1 ==> y - x = -13
Equation 2 ==> -4x + 3y = -51
3(y - x) = 3(-13)
Equation 3 ==> 3y - 3x = -39

Equation 2 - 3
= (3y - 3y) + ( -4x - (-3x) ) = -51 - (-39)
-x = -12
x = 12

Substitude x into equation 1
y - 12 = -13
y = -1
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